000 AXPZ20 KNHC 100303 TWDEP TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 0405 UTC THU SEP 10 2009 TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM THE EQUATOR TO 32N...EAST OF 140W. BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 0200 UTC. ...SPECIAL FEATURE... THE CENTER OF NEWLY UPGRADED HURRICANE LINDA AT 10/0300 UTC IS NEAR 17.1N 129.4W...OR ABOUT 1310 MILES/2110 KM TO THE WEST-SOUTHWEST OF THE SOUTHERN TIP OF BAJA CALIFORNIA. LINDA WAS MOVING NORTHWEST AT 5 KT. THE MAXIMUM SUSTAINED WIND SPEEDS WERE 65 KT WITH GUSTS TO 80 KT. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 987 MB. NUMEROUS STRONG CONVECTION WAS OCCURRING WITHIN 60 NM NW QUADRANT AND 90 NM S SEMICIRCLE. SCATTERED TO NUMEROUS MODERATE WITH ISOLATED STRONG CONVECTION WAS OCCURRING ELSEWHERE WITHIN 120 NM W AND 90 NM S SEMICIRCLE. PLEASE READ THE LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS MIATCMEP5/WTPZ25 KNHC AND THE PUBLIC ADVISORY UNDER TCPEP5/WTPZ35 KNHC FOR MORE DETAILS. SATELLITE AND MICROWAVE IMAGERY OF RECENT HOURS SHOWED DEEP CONVECTION ACROSS THE W HALF OF LINDA WRAPPING AROUND THE SW AND S PORTIONS...WITH SOME CLEARING OF AN EYE FEATURE BEGINNING TO EMERGE. LINDA IS TAKING ADVANTAGE OF THE NORTHERN FRINGES OF VERY WARM SEA SURFACE TEMPS ACROSS THIS AREA...AND GOOD OUTFLOW ACROSS THE N PORTION OF THE CIRCULATION TO INTENSIFY THIS EVENING. DRY AIR HAS WRAPPED AROUND THE OUTER PORTIONS OF THE W AND SW FLANKS OF LINDA...AND HAS BEGUN TO SEPARATED IT FROM THE ITCZ AND RELATED MOISTURE. ...TROPICAL WAVE... A TROPICAL WAVE WAS ANALYZED ALONG 89W/90W TO THE SOUTH OF 20N MOVING WEST 10 TO 15 KT. CONVECTION ACROSS THIS AREA WAS CONFINED TO THE ITCZ. ...THE ITCZ... AXIS WAS ALONG LINE FROM 08N79W TO 10N89W TO 11N96W TO 10N110W TO 15N125W...THEN CONTINUED FROM 12N130W TO 11N140W. SCATTERED MODERATE TO STRONG WITHIN 120 NM EITHER SIDE OF AXIS E OF 94W. SCATTERED MODERATE WITHIN 180 NM N OF AXIS BETWEEN 90W AND 110W AND WITHIN 240 NM S OF AXIS W OF 110W. ...DISCUSSION... A MIDDLE LEVEL TO UPPER LEVEL TROUGH EXTENDED FROM A LOW CENTER NEAR 33N126...SW TO AN ELONGATED MID TO UPPER LOW NEAR 22N134W...WITH THE TROUGH THEN MEANDERING IN A TUTT LIKE FASHION SW THEN W THEN NW TO ANOTHER LOW ALONG 30N AND NORTH OF THE HAWAIIAN ISLANDS. A LARGE UPPER RIDGE WAS LOCATED NW AND N OF THIS MEANDERING TROUGH. TO THE E OF THIS TROUGH...A LARGE TROPICAL UPPER RIDGE EXTENDED ALONG 20N BETWEEN 82W AND NEWLY UPGRADED HURRICANE LINDA. UPPER DIFFLUENCE AND MODEST SPEED DIVERGENCE WAS ENHANCING DIURNAL CONVECTION INTO THE EVENING HOURS ACROSS MUCH OF MEXICO... CENTRAL AMERICA...AND EVEN ACROSS THE W AND NW GULF OF MEXICO. UPPER LEVEL ELYS ACROSS THE ITCZ AND TROPICAL EPAC E OF 120W WERE ALSO VENTING AND ENHANCING DEEP CONVECTION. A LARGE UPPER LEVEL DEFORMATION ZONE CONTINUES W AND SW OF HURRICANE LINDA...AS UPPER LEVEL E TO SE FLOW E OF 120 ENCOUNTERS UPPER LEVEL NW TO W FLOW...WITH AXIS ORIENTED NNE TO WSW. SOME OF THE DRY SINKING AIR WITHIN THIS ZONE HAS BEEN TRYING TO WRAP AROUND THE W AND SW FLANKS OF LINDA...BUT HAVE REMAINED OUTSIDE THE CORE CIRCULATION OF LINDA. ACROSS THE FAR ERN EPAC...A SHARP UPPER LEVEL TROUGH ACROSS THE W AND SW CARIBBEAN EXTENDS SE ACROSS COAST RICA AND PANAMA...WITH BROAD CYCLONIC TURNING AND DIFFLUENCE AIDING IN DEEP CONVECTION ACROSS COLOMBIA AND ALONG THE ITCZ E OF 84W. UPPER CONVERGENCE OVER THE ITCZ JUST TO THE W HAS STIFLED CONVECTION IN THE PAST FEW HOURS. ABUNDANT TROPICAL MOISTURE CONTINUES ACROSS THE FAR TROPICAL EPAC S OF THE ITCZ AND E OF 95W...ASSOCIATED WITH THE S AMERICAN MONSOON CIRCULATION. ANOTHER AREA OF ABUNDANT TROPICAL MOISTURE WAS DEPICTED BY TPW LOOPS N OF 07N AND BETWEEN 98W AND 110W. THIS WAS LIKELY ASSOCIATED WITH A MISPLACED TROPICAL WAVE...AND THE WRN PERIPHERY OF THE MONSOON CIRCULATION. BROAD AND WEAK CYCLONIC TURNING WAS SUGGESTED BY SATELLITE IMAGERY. OUTSIDE OF THE CIRCULATION OF LINDA...WINDS WERE GENERALLY LIGHT TO MODERATE ACROSS MUCH OF THE MARINE AREA...WITH MODEST SEAS IN MIXED S AND N HEMI SWELL. FRESH S TO SW FLOW WAS DEPICTED BY AFTERNOON SCATTEROMETER IMAGERY ACROSS MUCH OF THE AREA S OF THE ITCZ AND E OF LINDA. S OF THE EQUATOR...A BROAD AREA OF 25-30 KT WINDS AND SEAS OF 10-14 FT IN SE SWELL WAS OCCURRING S OF 05S AND E OF 110W. WINDS AND SEAS HERE WILL DIMINISH VERY SLIGHTLY DURING THE NEXT 24 HOURS...WHILE THE SWELL PROPAGATES ACROSS THE EQUATOR AND PAST THE GALAPAGOS ISLANDS. $$ STRIPLING